Impact damage characteristics in reinforced woven natural silk/epoxy composite face-sheet and sandwich foam, coremat and honeycomb materials

Journal article

Authors / Editors

Ude, Albert

Research Areas

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Publication Details

Author list: Ude AU, Ariffin AK, Azhari CH

Publisher: Elsevier

Place: OXFORD

Publication year: 2013

Journal: International Journal of Impact Engineering (0734-743X)

Journal acronym: INT J IMPACT ENG

Volume number: 58

Start page: 31

End page: 38

Number of pages: 8

ISSN: 0734-743X

eISSN: 1879-3509

Languages: English-Great Britain (EN-GB)

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Abstract

This research is interested in the impact toughness of a reinforced composite face-sheet and cores materials used in lightweight sandwich panels. It investigated the degrees of damage inflicted on the contact surface, through thickness and rear surface of the sandwich panels. The sandwich specimens were prepared in configurations of natural silk (NS)/Epoxy/Foam, NS/Epoxy/Coremat, NS/Epoxy/Honeycomb and reinforced NS/Epoxy serving as referral. For all experiments, drop weight impact test was carried out under low velocity impact energies of 32 J, 48 J and 64 J. Parameters measured were load bearing capability, energy absorption capability and damage fragmentation of the specimen with regards to increasing impact loads. Dominant deformation modes were seen as upper face-sheet compression failure, lower face-sheet delamination and lower face-sheet tensile failure. (C) 2013 Elsevier Ltd. All rights reserved.

Keywords

Impact response, Low velocity, Natural silk, Sandwich

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